1390-6542

S1390-65422017000500076

10.29019/enfoqueute.v8n5.182

Ecuador

00 12 2017

8 5 76 88

2014

2005

2012

Gaceta Oficial del Distrito Federal 2014

Institute for Transportation and Develepment Policy, GTZ 2006

National Highway Traffic Safety Administration School, NHTSA 2002

Organizacion de la Naciones Unidas, ONU 1999

2012

1-11

Society of Automotive Enginners 1994